Facts about human blood

LISTED BELOW ARE SOME SCIENTIFIC FACTS ABOUT BLOOD. 1. The first transfer of blood was done in 1667 between two dogs. 2. The world’s first Blood Bank was built in 1937. 3. A drop of blood contains 10,000 white blood cells and 250,000 platelets. 4. In our body, 70% of the blood is present in the hemoglobin present in the red blood cell, in the protein of 4% of the muscle mass in myoglobin, 25% Read more about Facts about human blood[…]